页岩储层CO2驱沥青质沉淀特征及影响因素分析

doi:10.3969/j.issn.1006-6535.2022.02.012

特种油气藏 ›› 2022, Vol. 29 ›› Issue (2): 83-90.DOI: 10.3969/j.issn.1006-6535.2022.02.012

页岩储层CO₂驱沥青质沉淀特征及影响因素分析

孙挺¹, 史海东², 郑建军³, 钟小刚⁴, Watheq J⁵, Al-Mudhafar⁵

1.中国石油大学(北京),北京 102249;
2.中国石油勘探开发研究院,北京 100083;
3.中海石油(中国)有限公司蓬勃作业公司,天津 300450;
4.中国石油大港油田分公司,天津 300450;
5.Basrah Oil Company,Basrah 999048,Iraq

收稿日期:2021-03-23 修回日期:2021-12-30 出版日期:2022-04-25 发布日期:2023-01-10
作者简介:孙挺(1981—),男,副教授,2005年毕业于中国石油大学(华东)油气储运专业,2013年毕业于路易斯安那州立大学石油工程专业,获博士学位,现主要从事石油天然气提高采收率方面研究工作。
基金资助:
中国石油大学(北京)引进人才科研启动基金“页岩气藏单井最终可采储量计算”(2462017YJRC034)

Analysis of Asphaltene Deposition Characteristics and Influencing Factors of CO₂ Flooding in Shale Reservoirs

Sun Ting¹, Shi Haidong², Zheng Jianjun³, Zhong Xiaogang⁴, Watheq J⁵, Al-Mudhafar⁵

1. China University of Petroleum (Beijing), Beijing 102249, China;
2. Research Institute of Petroleum Exploration & Development, Beijing 100083, China;
3. CNOOC Pengbo Operation Company, Tianjin 300450, China;
4. PetroChina Dagang Oilfield Company, Tianjin 300450, China;
5. Basrah Oil Company, Basrah 999048, Iraq

Received:2021-03-23 Revised:2021-12-30 Online:2022-04-25 Published:2023-01-10

摘要/Abstract

摘要： 为明确CO₂在页岩储层纳米孔隙中的流动机理及其对沥青质沉淀的影响,采用自主研发的高温高压过滤容器和复合纳米滤膜,进行纳米滤膜过滤实验,模拟了单(多)层岩石切片作用下的CO₂驱替过程,开展储层参数和注入参数对CO₂驱替效果及沥青质沉淀的影响研究。研究结果表明:CO₂驱会引发沥青质沉淀,导致剩余油中的沥青质含量远大于产出油中的沥青质含量;产出油中沥青质含量随CO₂注入压力和滤膜孔径的增加而增大,但随温度、闷井时间、滤膜厚度和非均质性的增加而降低;剩余油中的沥青质含量变化则与产出油沥青质含量相反;储层参数和注入参数对沥青质沉淀的影响程度依次为滤膜厚度(40.63%)、注入压力(20.74%)、非均质性(16.84%)、温度(10.86%)、滤膜孔径(7.37%)、闷井时间(3.56%)。研究成果可为CO₂驱提高页岩油采收率提供参考和借鉴。

关键词: CO₂驱, 页岩油, 纳米滤膜, 沥青质沉淀, 非均质性

Abstract: In order to clarify the mechanism of CO₂ flowing in the nano-pores of shale reservoirs and its influence on asphaltene deposition, a nano-filtration experiment was conducted with self-developed high-temperature and high-pressure filtration vessel and composite nano-filtration membrane to simulate the CO₂ flooding process under the action of single (multi)-layer rock slices, and to study the influence of reservoir parameters and injection parameters on CO₂ flooding effect and asphaltene deposition. The results showed that CO₂ flooding caused asphaltene deposition, resulting in the asphaltene content in the remaining much higher than that in the produced oil; the asphaltene content in the produced oil increased with the increase of CO₂ injection pressure and filter membrane pore size, but decreased with the increase of temperature, shut-in duration, membrane thickness and heterogeneity; the influence degree of reservoir parameters and injection parameters on asphaltene deposition was as follows: membrane thickness (40.63%), injection pressure (20.74%), heterogeneity (16.84%), temperature (10.86%), membrane pore size (7.37%), and shut-in duration (3.56%). The study results provide reference and basis for enhancing the recovery efficiency of shale oil reservoirs by CO₂ flooding.

Key words: CO₂ flooding, shale oil, nano filtration membrane, asphaltene deposition, heterogeneity

中图分类号:

TE349

孙挺, 史海东, 郑建军, 钟小刚, Watheq J, Al-Mudhafar. 页岩储层CO₂驱沥青质沉淀特征及影响因素分析[J]. 特种油气藏, 2022, 29(2): 83-90.

Sun Ting, Shi Haidong, Zheng Jianjun, Zhong Xiaogang, Watheq J, Al-Mudhafar. Analysis of Asphaltene Deposition Characteristics and Influencing Factors of CO₂ Flooding in Shale Reservoirs[J]. Special Oil & Gas Reservoirs, 2022, 29(2): 83-90.

参考文献

[1] 韩海水,李实,陈兴隆,等.CO₂对原油烃组分膨胀效应的主控因素[J].石油学报,2016,37(3):392-398.
HAN Haishui,LI Shi,CHEN Xinglong,et al.Main control factors of carbon dioxide on swelling effect of crude hydrocarbon components[J].Acta Petrolei Sinica,2016,37(3):392-398.
[2] 沈平平,黄磊.二氧化碳-原油多相多组分渗流机理研究[J].石油学报,2009,30(2):247-251.
SHEN Pingping,HUANG Lei.Flow mechanisms of multi-phase multi-component CO₂-crude oil system in porous media[J].Acta Petrolei Sinica,2009,30(2):247-251.
[3] 胡伟,吕成远,王锐,等.水驱转CO₂混相驱渗流机理及传质特征[J].石油学报,2018,39(2):201-209.
HU Wei,LYU Chengyuan,WANG Rui,et al.Porous flow mechanisms and mass transfer characteristics of CO₂ miscible flooding after water flooding[J].Acta Petrolei Sinica,2018,39(2):201-209.
[4] 唐梅荣,张同伍,白晓虎,等.孔喉结构对CO₂驱储层伤害程度的影响[J].岩性油气藏,2019,31(3):1-8.
TANG Meirong,ZHANG Tongwu,BAI Xiaohu,et al.Influence of pore throat structure on reservoir damage with CO₂ flooding[J].Lithologic Reservoirs,2019,31(3):1-8.
[5] 陈龙龙,余华贵,汤瑞佳,等.沥青质沉积对轻质油藏CO₂驱的影响[J].油田化学,2017,34(1):87-93.
CHEN Longlong,YU Huagui,TANG Ruijia,et al.Effect of asphalt deposition on CO₂ flooding in light oil reservoir[J].Oilfield Chemistry,2017,34(1):87-93.
[6] WANG Zhilin,YANG Shenglai,LEI Hao,et al.Oil recovery performance and permeability reduction mechanisms in miscible CO₂ water alternative-gas (WAG) injection after continuous CO₂ injection:an experimental investigation and modeling approach[J].Journal of Petroleum Science and Engineering,2017,150(2):376-385.
[7] SRIVASTAVA R K,HUANG S S,DONG M Z.Asphaltene deposition during CO₂ flooding[J].SPE Production & Facilities,1999,14(4):235-245.
[8] 雷浩.低渗储层CO₂驱油过程中沉淀规律及防治对策研究[D].北京:中国石油大学(北京),2017.
LEI Hao.Deposition mechanisms and reservoir protection countermeasures of a low-permeability formation in CO₂ flooding process[D].Beijing:China University of Petroleum(Beijing),2017.
[9] FAKHER S,IMQAM A.Asphaltene precipitation and deposition during CO₂ injection in nano shale pore structure and its impact on oil recovery[J].Fuel,2019,237:1029-1039.
[10] BENHBAHANI T J,GHOTBI C,TAGHIKHANI V,et al.Investigation on asphaltene deposition mechanisms during CO₂ flooding processes in porous media: a novel experimental study and modified model based on multilayer theory for asphaltene adsorption[J].Energy & Fuels,2012,26(8):5080-5091.
[11] WANG X Q,GU Y A.Oil recovery and permeability reduction of a tight sandstone reservoir in immiscible and miscible CO₂ flooding process[J].Industrial & Engineering Chemistry Research,2011,50(4):2388-2399.
[12] PAPADIMITRIOU N I,ROMANOS G E,CHARALAMBOPOU G C,et al.Experimental investigation of asphaltene deposition mechanism during oil flow in core samples[J].Journal of Petroleum Science and Engineering,2007,57(3):281-293.
[13] WEI Bing,ZHANG Xiang,LIU Jiang,et al.Supercritical CO₂-EOR in an asphaltenic tight sandstone formation and the changes of rock petrophysical properties induced by asphaltene precipitation[J].Journal of Petroleum Science and Engineering,2020,184(2):376-385.
[14] QIAN Kun,YANG Shenglai,DOU Hong′en,et al.Formation damage due to asphaltene precipitation during CO₂ flooding processes with NMR technique[J].Oil & Gas Science and Technology-Revue d′IFP Energies nouvelles,2019,74(11):1121-1134.
[15] 王翠红,罗爱兰,王子军.石油沥青质四组分测定方法:NB/SH/T 0509—2010[S].北京:中国石化出版社,2010:3-5.
WANG Cuihong,LUO Ailan,WANG Zijun.Test method for separation of asphalt into four fractions:NB/SH/T 0509-2010[S].Beijing:China Petrochemical Press,2010:3-5.
[16] LEI H,YANG S L,QIAN K,et al.Experimental investigation and application of asphaltene precipitation envelop[J].Energy & Fuels,2015,29(11):6920-6927.
[17] HOSSEINI E.Experimental investigation of effect of asphaltene deposition on oil relative permeability,rock wettability alteration and recovery in WAG process[J].Petroleum Science and Technology,2019,20(37):2150-2159.

页岩储层CO₂驱沥青质沉淀特征及影响因素分析

Analysis of Asphaltene Deposition Characteristics and Influencing Factors of CO₂ Flooding in Shale Reservoirs

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

本文评价

[1]	赵晨旭, 李忠诚, 郭世超, 鲍志东, 魏兆胜, 李磊, 王海龙. 松辽盆地南部长岭断陷青一段陆相页岩地球化学和沉积环境特征[J]. 特种油气藏, 2023, 30(6): 55-61.
[2]	周忠亚. 纹层型页岩油储层裂缝扩展机理及工艺对策[J]. 特种油气藏, 2023, 30(6): 141-149.
[3]	周志军, 张国青, 崔春雪, 王静怡, 王娟. 不同岩性页岩油储集空间及物性特征[J]. 特种油气藏, 2023, 30(5): 42-49.
[4]	张矿生, 薛小佳, 陶亮, 熊作为, 陈文斌, 武安安, 闫广. 页岩油水平井体积压裂缝网波及体积评价新方法及应用[J]. 特种油气藏, 2023, 30(5): 127-134.
[5]	钟红利, 卓自敏, 张凤奇, 张佩, 陈玲玲. 鄂尔多斯盆地甘泉地区长7页岩油储层非均质性及其控油规律[J]. 特种油气藏, 2023, 30(4): 10-18.
[6]	熊雄, 肖佃师, 雷祥辉, 李映燕, 卢双舫, 王猛, 彭悦, 郭雪燚. 吉木萨尔凹陷芦草沟组页岩油录井响应及“甜点”快速评价技术[J]. 特种油气藏, 2023, 30(4): 35-43.
[7]	文家成, 胡钦红, 杨升宇, 马斌玉, 王旭阳, 蒲秀刚, 韩文中, 张伟. 渤海湾盆地沧东凹陷孔二段页岩储层特征及页岩油可动性评价[J]. 特种油气藏, 2023, 30(4): 63-70.
[8]	尹家峰, 王晓军, 鲁政权, 步文洋, 孙磊, 景烨琦, 孙云超, 闻丽. 辽河大民屯凹陷页岩油储层强封堵恒流变油基钻井液技术[J]. 特种油气藏, 2023, 30(4): 163-168.
[9]	曹长霄, 宋兆杰, 师耀利, 高阳, 郭佳, 常旭雅. 吉木萨尔页岩油二氧化碳吞吐提高采收率技术研究[J]. 特种油气藏, 2023, 30(3): 106-114.
[10]	罗强, 李明, 李凯, 宁朦, 贺伟, 杜代军. 砂砾岩油藏原位乳化提高采收率实验研究[J]. 特种油气藏, 2023, 30(1): 100-106.
[11]	陈昌. 大民屯凹陷沙四段湖相页岩油地震预测关键技术与应用[J]. 特种油气藏, 2022, 29(5): 28-35.
[12]	张冰. 松辽盆地北部页岩储层地质评价及关键技术研究[J]. 特种油气藏, 2022, 29(5): 72-79.
[13]	段波龙, 李垚银, 孙志雄, 常志勇, 党思思, 马艳清. 夏盐11井区剩余油分布特征与挖潜对策研究[J]. 特种油气藏, 2022, 29(4): 114-119.
[14]	唐维宇, 黄子怡, 陈超, 丁振华, 盛家平, 王秀坤, 乐平. 吉木萨尔页岩油CO₂吞吐方案优化及试验效果评价[J]. 特种油气藏, 2022, 29(3): 131-137.
[15]	赖富强, 李仕超, 王敏, 刘粤蛟, 钟路路, 黄兆辉, 王海涛. 济阳坳陷页岩油储层矿物组分最优化反演方法[J]. 特种油气藏, 2022, 29(2): 16-23.